PHOTOS Jenelle Evans and Nathan Griffith celebrate son Kaiser’s first birthday together

A photo posted by Jenelle Evans (@j_evans8209) on Jun 21, 2015 at 9:08pm PDT

 

On the upcoming season of Teen Mom 2, viewers will watch as Jenelle Evans and Nathan Griffith’s relationship goes from good (when they got engaged) to very, very bad (when he was arrested for domestic violence, a charge that was later dropped). But, in real-time, it seems the exes are actually on pretty great terms!

“Even though we have our ups and downs one thing will never change… U are and always will be a great father,” Jenelle said of Nathan on Instagram yesterday.

 

A photo posted by Jenelle Evans (@j_evans8209) on Jun 21, 2015 at 9:06pm PDT

 

In addition to celebrating Father’s Day together, Jenelle and Nathan also marked son Kaiser’s first birthday one week early.

 

I had to sorry Kai ! had his birthday party today and it was a huge success !!!

A photo posted by Jenelle Evans (@j_evans8209) on Jun 21, 2015 at 5:15pm PDT

 

Based on the amount of cake Kaiser ended up with on his face and the kind posts from Jenelle to Nathan, it seems the celebration was a huge success.

Watch Jenelle and Nathan’s relationship highs and lows on the new season of Teen Mom 2, premiering on MTV on Thursday, July 9 at 10/9c.